Hello, my little R170 230 compressor is driving me a little crazy. Yesterday, on a road trip, he started to jerk and turned off a cylinder. Usual games. Staying still, restarting, everything again good. Unfortunately not for long. Read out at home: P0304 Today he made a short ride and then had the following mistakes: P0304, P0302 Well, according to the plan, almost the life of the gas candles is reached. So this morning once the candles changed. Since I still had almost new ignition modules to hand, which also directly. When I drive slowly or in the stand, then it runs great. But when I drive on the Landstr 100, then he starts to jerk at some point, the stationary gas can not hold and intercept and are switched off to good last. I did not find a cable problem, or a broken pressure hose. But that should not mean anything. Mass cables are loosened and re-screwed. In the error memory only these errors are always deposited. Someone has an idea?